I was working with virtualbox on ubuntu 14.04 suddenly it closed and didn't start afterward. when I tried to load it from terminal it showed me
LibQtCore.so.4 file too short, which I've fixed it by reinstalling all needed libraries.
but after rebuilding libraries when I try to open virtualbox from terminal I get :
Segmentation fault (core dumped)
And there is no clue what should I do to fix this. Also my vlc and clementine players has the same status.
what should I do to fix this?